Matthew wilson



(No Model.)

M. WILSON.

Corn File.

Patented Junezs, 1881.

No.v 243,671.

N. PEIEHS. Phaxcruxhognpmr, wammgmn. uc.

. UNITED STATES PATENT OFFICE.

MATTHEW WILSON, OF LONDON, ENGLAND.

vCORN-FILE.

SPECIFICATION forming part of Letters Patent No. 243,671, dated June 28, 1881. Application tiled December 1, 1880. (No model.) Patented in England July 6, 1880.

To all whom it may concern Be it known that I, MATTHEW WILSON, ot London, England, merchant, have invented a new and useful Improvement in Instruments for Removing Corus or other Callosities of the Outicle, (for which I have obtained a patent in Great Britain, No. 2,767, bearing date July 6, 1880,) of whichvthe following is a specification, reference being had to the accompanying drawings.

My improvement consists ot' an instrument made ot' glass or other suitable material, having a conical or spherical end drill and side rasping-surfaces formed of emery or like substance incorporated in the material while soft, whereby it is adapted for a drilling actionv to remove the central portion or coreof the hardened excrescence which forms the corn, and for reducing the surface of the corn, the drilling capacity ot' the instrumentr giving theimportant advantage of eftectingthe eradication of the corn, which a mere reducing-surface cannot effect.

In the drawings, Figure 1 shows a cylindrical. stem, a, having one end formed with a conical or spherical end drill, a', adapted to operate with a perforating action to penetrate and remove the central portion or core of the hardened excrescence which forms the corn, and having a longitudinal serrated or roughened part, a2, for rubbing down and reducing the surface of the corn,and for trimming nails ofthe feet or hands. Fig. 2 shows the instrument provided with side reducing-surfaces, a2, one finer than the other. Fig. 3 shows theinstrument provided with a tlat, or nearly flat, reducing-surface. Fig. 4 shows the instrument provided with both iiattened and cylindrieal reducing-surfaces, while Fig. 5 shows a series of such iiattened surfaces of dierent degrees otl tineness, and a drill at each end of the body having different cutting capacities.

abrading surface, as shown in Figs. 3, 4, and

5, the drilling ends in such figures being shown as so formed.

When Ina-de of glass the instrument may be hollow, and colored paper or other material muy be inserted. It Inay, however, be made of vulcanized india-rubber, celluloid, porcelain, china, terra-cotta, and other material that will absorb, while in a plastic state, the

abrading or rasping substance.

It is important for general use that the instrument be complete, and its function as a tile and as a drill adapt it for eradicating corns by entering and cutting out the core by a rotary movement, and for reducing the hard surface of the excrescence by a rubbing action.

It is important that the reducing-surfaces have different degrees of roughness, and that the drill-forming ends be of different sizes in adapting the instrument for use under varying conditions of eorns, and withoutpain or danger to the foot.

A corn-tile made of glass or similar substance, with abrading-surfaces at its rounded end or ends, and upon its sides formed of emery or like substance, incorporated in the glass while soft, substantially as described.

MATTHEW WILSON. Witnesses:

GEORGE H. GEAPEs, S Southampton Buildings, London, W. O.

HY. JNO. ALLEN, 8 Southampton Buildings, London, England. 

